Add org.eclipse.tips.tests to Tycho build

* Make test bundle independent from org.eclipse.tips.examples by
replicating the dummy resource used from the example project in the test
project
* Add test project as module to Maven build
* Add a JUnit 5 test suite containing all tips tests
* Add test suite to build.properties for pomless Tycho execution

ua/org.eclipse.tips.tests/META-INF/MANIFEST.MF

@@ -5,8 +5,7 @@ Bundle-SymbolicName: org.eclipse.tips.tests
 Bundle-Version: 1.2.0.qualifier
 Bundle-Vendor: Eclipse
 Bundle-RequiredExecutionEnvironment: JavaSE-17
-Require-Bundle: org.eclipse.tips.examples;bundle-version="0.1.0",
- org.eclipse.tips.ide;bundle-version="0.1.0",
+Require-Bundle: org.eclipse.tips.ide;bundle-version="0.1.0",
  org.eclipse.core.runtime;bundle-version="3.29.0",
  org.eclipse.swt,
  org.eclipse.jface;bundle-version="3.12.0",
@@ -17,4 +16,5 @@ Automatic-Module-Name: org.eclipse.tips.tests
 Import-Package: com.google.gson;version="[2.8.6,3.0.0)",
  org.assertj.core.api,
  org.junit.jupiter.api,
- org.junit.jupiter.api.function
+ org.junit.jupiter.api.function,
+ org.junit.platform.suite.api

ua/org.eclipse.tips.tests/build.properties

@@ -14,5 +14,9 @@
 source.. = src/
 output.. = bin/
 bin.includes = META-INF/,\
+               icons/,\
                .
 src.includes = about.html
+pom.model.property.testClass = org.eclipse.tips.tests.AllTipsTests
+pom.model.property.tycho.surefire.useUIHarness = true
+pom.model.property.tycho.surefire.useUIThread = true

ua/org.eclipse.tips.tests/src/org/eclipse/tips/core/TestTipProvider.java

@@ -46,7 +46,7 @@ public String getID() {
 	@Override
 	public TipImage getImage() {
 		if (image == null) {
-			URL url = Platform.getBundle("org.eclipse.tips.examples").getEntry("icons/48/c++.png");
+			URL url = Platform.getBundle("org.eclipse.tips.tests").getEntry("icons/dummy.png");
 			Image pluginImage = resourceManager.get(ImageDescriptor.createFromURL(url));
 			String base64 = ImageUtil.decodeFromImage(pluginImage, SWT.IMAGE_PNG);
 			image = new TipImage(base64);

ua/org.eclipse.tips.tests/src/org/eclipse/tips/tests/AllTipsTests.java

@@ -0,0 +1,35 @@
+/*******************************************************************************
+ * Copyright (c) 2024 Vector Informatik GmbH and others.
+ *
+ * This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License 2.0
+ * which accompanies this distribution, and is available at
+ * https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *******************************************************************************/
+package org.eclipse.tips.tests;
+
+import org.eclipse.tips.core.TipImageBas64Test;
+import org.eclipse.tips.core.TipImageURLTest;
+import org.eclipse.tips.core.TipManagerTest;
+import org.eclipse.tips.core.TipProviderTest;
+import org.eclipse.tips.core.TipTest;
+import org.eclipse.tips.json.internal.UtilTest;
+import org.eclipse.tips.util.ImageUtilTest;
+import org.junit.platform.suite.api.SelectClasses;
+import org.junit.platform.suite.api.Suite;
+
+@Suite
+@SelectClasses({ //
+		TipImageBas64Test.class, //
+		TipImageURLTest.class, //
+		TipManagerTest.class, //
+		TipProviderTest.class, //
+		TipTest.class, //
+		UtilTest.class, //
+		ImageUtilTest.class, //
+})
+public class AllTipsTests {
+
+}

ua/pom.xml

@@ -41,8 +41,8 @@
     <module>org.eclipse.tips.ide</module>
     <module>org.eclipse.tips.json</module>
     <module>org.eclipse.tips.feature</module>
+    <module>org.eclipse.tips.tests</module>
 
     <module>infocenter-web</module>
   </modules>
 </project>
-